DE102008007925A1 - Separating helium, comprises condensing helium-containing fraction, separating into e.g. helium-enriched gas fraction, condensing the gas fraction, evaporating liquid fraction, separating into e.g. helium-rich gas fraction and heating - Google Patents
Separating helium, comprises condensing helium-containing fraction, separating into e.g. helium-enriched gas fraction, condensing the gas fraction, evaporating liquid fraction, separating into e.g. helium-rich gas fraction and heating Download PDFInfo
- Publication number
- DE102008007925A1 DE102008007925A1 DE102008007925A DE102008007925A DE102008007925A1 DE 102008007925 A1 DE102008007925 A1 DE 102008007925A1 DE 102008007925 A DE102008007925 A DE 102008007925A DE 102008007925 A DE102008007925 A DE 102008007925A DE 102008007925 A1 DE102008007925 A1 DE 102008007925A1
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- Prior art keywords
- helium
- fraction
- nitrogen
- separating
- gas fraction
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/06—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by partial condensation
- F25J3/0605—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by partial condensation characterised by the feed stream
- F25J3/061—Natural gas or substitute natural gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/06—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by partial condensation
- F25J3/063—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by partial condensation characterised by the separated product stream
- F25J3/066—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by partial condensation characterised by the separated product stream separation of nitrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/06—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by partial condensation
- F25J3/063—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by partial condensation characterised by the separated product stream
- F25J3/0685—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by partial condensation characterised by the separated product stream separation of noble gases
- F25J3/069—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by partial condensation characterised by the separated product stream separation of noble gases of helium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/40—Processes or apparatus using other separation and/or other processing means using hybrid system, i.e. combining cryogenic and non-cryogenic separation techniques
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/60—Processes or apparatus using other separation and/or other processing means using adsorption on solid adsorbents, e.g. by temperature-swing adsorption [TSA] at the hot or cold end
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2210/00—Processes characterised by the type or other details of the feed stream
- F25J2210/42—Nitrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2270/00—Refrigeration techniques used
- F25J2270/08—Internal refrigeration by flash gas recovery loop
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2270/00—Refrigeration techniques used
- F25J2270/90—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration
- F25J2270/904—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration by liquid or gaseous cryogen in an open loop
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
Description
Die Erfindung betrifft ein zum Abtrennen von Helium aus einer Helium-enthaltenden Fraktion, insbesondere aus einer Helium-, Stickstoff- und Methan-enthaltenden Fraktion.The The invention relates to a device for separating helium from a helium-containing Fraction, in particular of a helium, nitrogen and methane-containing Fraction.
Erdgas enthält im Regelfall geringe Anteile an Helium; diese Anteile betragen üblicherweise zwischen 0.1 und 0.5%. Bei der Verflüssigung des Erdgases reichert sich das Helium im sog. Restgas an. Dieses Restgas stellt daher die häufigste Quelle für die Helium-Gewinnung dar. Eine weitere Quelle für eine Helium-enthaltende Fraktion ist die Zwischenentspannung von LNG (Liquefied Natural Gas).natural gas contains usually low levels of helium; these shares are usually between 0.1 and 0.5%. In the liquefaction of natural gas enriches Helium reacts in so-called residual gas. This residual gas is therefore the most frequent Source for the Helium recovery. Another source for a helium-containing fraction is the intermediate relaxation of LNG (Liquefied Natural Gas).
Ein
zum Stand der Technik zählendes
Verfahren zum Abtrennen von Helium aus einer Helium-reichen Fraktion
sei anhand des in der
Über Leitung
Die
Kondensation der Helium-enthaltenden Fraktion im Wärmetauscher
E1 erfolgt gegen einen über
die Leitung
Die
am Kopf des Abscheiders D1 über
Leitung
Über Leitung
Aus
dem Sumpf des Abscheiders D3 wird über Leitung
Sollte
die Menge der über
Leitung
Die
aus dem Sumpf des Abscheiders D2a über Leitung
Die
Flüssigfraktion
aus dem Sumpf des Abscheiders D2a wird vor der Zuführung in
den Abscheider D2b entspannt (Ventil b). Gleiches gilt für die aus
dem Sumpf des Abscheiders D2b über
die Leitung
Je
nach Druck der Gasfraktion in der Leitung
Die
aus den vorgenannten Abscheidern D2b und D2c abgezogenen Flüssigfraktionen
werden dazu verwendet, den Kältebedarf
im Wärmetauscher E2
zu decken. Sie werden dazu auf Umgebungstemperatur verdampft und
anschließend
abgegeben. Sofern ein zusätzlicher
Kältebedarf
besteht, wird über Leitung
Der vorbeschriebene Helium-Gewinnungsprozess ist vergleichsweise apparateintensiv. Trotzdem kann das im Einsatzgas enthaltende Helium nicht vollständig gewonnen werden, da ein geringer Helium-Anteil in den aus den Abscheidern D1, D2b und D2c abgezogenen Flüssigfraktionen verbleibt und diese nicht zur Helium-Gewinnung verwendet werden. Darüber hinaus wird das Helium bei einem niedrigen Druck aus der Abscheiderkette D2a bis D2c gewonnen und muss deshalb vor die zweite Verdichtung C2 zurückgeführt werden. Daraus resultiert jedoch ein unerwünschter, hoher Verdichtungsaufwand.Of the The helium recovery process described above is comparatively expensive in terms of apparatus. Nevertheless, the helium contained in the feed gas can not be completely recovered because of a low helium content in the precipitators D1, D2b and D2c withdrawn liquid fractions remains and these are not used for helium extraction. About that In addition, the helium at a low pressure from the separator chain D2a to D2c won and must therefore before the second compression C2 be returned. However, this results in an undesirable, high compaction effort.
Aufgabe der vorliegenden Erfindung ist es, ein gattungsgemäßes Verfahren zum Abtrennen von Helium aus einer Helium-enthaltenden Fraktion, insbesondere aus einer Helium-, Stickstoff- und Methan-enthaltenden Fraktion, anzugeben, das die vorgenannten Nachteile vermeidet.task The present invention is a generic method for separating helium from a helium-containing fraction, in particular from a helium, nitrogen and methane-containing Fraction, which avoids the aforementioned disadvantages.
Zur Lösung dieser Aufgabe wird ein gattungsgemäßes Verfahren zum Abtrennen von Helium aus einer Helium-enthaltenden Fraktion, insbesondere aus einer Helium-, Stickstoff- und Methan-enthaltenden Fraktion, vorgeschlagen, das dadurch gekennzeichnet ist, dass
- a) die Helium-enthaltende Fraktion zumindest teilweise kondensiert und in eine Helium-angereicherte Gasfraktion und eine Helium-abgereicherte Flüssigfraktion aufgetrennt wird,
- b) die Helium-angereicherte Gasfraktion soweit kondensiert wird, dass die Helium-Konzentration in der dabei gewonnenen Gasfraktion wenigstens 90%, vorzugsweise wenigstens 95% und insbesondere wenigstens 98% beträgt,
- c) die Helium-abgereicherte Flüssigfraktion entspannt, soweit verdampft wird, dass wenigstens 70%, vorzugsweise wenigstens 85% des in ihr enthaltenen Heliums gasförmig vorliegt, und in eine Helium-reiche Gasfraktion und eine Helium-arme Flüssigfraktion aufgetrennt wird und
- d) die Helium-reiche Gasfraktion angewärmt und der Helium-enthaltenden Fraktion zugemischt wird.
- a) the helium-containing fraction is at least partially condensed and separated into a helium-enriched gas fraction and a helium-depleted liquid fraction,
- b) the helium-enriched gas fraction is condensed to such an extent that the helium concentration in the gas fraction obtained is at least 90%, preferably at least 95% and in particular at least 98%,
- c) the helium-depleted liquid fraction is expanded, if it is vaporized, that at least 70%, preferably at least 85% of the helium contained in it is present in gaseous form, and is separated into a helium-rich gas fraction and a low-helium liquid fraction, and
- d) the helium-rich gas fraction is warmed and admixed with the helium-containing fraction.
Weitere vorteilhafte Ausgestaltungen des erfindungsgemäßen Verfahrens zum Abtrennen von Helium aus einer Helium-enthaltenden Fraktion sind dadurch gekennzeichnet, dass
- – die Helium-enthaltende Fraktion vor ihrer Kondensation und Auftrennung in eine Helium-angereicherte Gasfraktion und eine Helium-abgereicherte Flüssigfraktion ein- oder mehrstufig verdichtet, vorzugsweise auf einen Druck zwischen 10 und 50 bar verdichtet wird,
- – die Helium-enthaltende Fraktion vor ihrer Kondensation und Auftrennung in eine Helium-angereicherte Gasfraktion und eine Helium-abgereicherte Flüssigfraktion einer Stickstoff-Abtrennung unterworfen wird,
- – die bei der Stickstoff-Abtrennung anfallende Stickstoff-reiche Fraktion auf einen niedrigeren Druck entspannt, in eine Helium-enthaltende, Stickstoff-abgereicherte Gasfraktion und eine Stickstoff-angereicherte Flüssigfraktion aufgetrennt, die Helium-enthaltende, Stickstoff-abgereicherte Gasfraktion angewärmt und der Helium-enthaltenden Fraktion, vorzugsweise vor deren Verdichtung, zugeführt wird,
- – die bei der Stickstoff-Abtrennung anfallende Stickstoff-reiche Fraktion nach ihrer Entspannung und vor ihrer Auftrennung in eine Helium-enthaltende, Stickstoff-abgereicherte Gasfraktion und eine Stickstoff-angereicherte Flüssigfraktion zumindest teilweise verdampft wird,
- – zur Unterstützung der Kondensation der Helium-enthaltenden Fraktion, der Helium-angereicherten Gasfraktion und/oder der Helium-abgereicherten Flüssigfraktion ein Fremd-Kältemittel, vorzugsweise Stickstoff, vorgesehen wird,
- – die Helium-enthaltende Fraktion, vorzugsweise nach ihrer Verdichtung von störenden Komponenten, insbesondere von Wasserstoff, Kohlenmonoxid, Kohlendioxid und/oder Wasser, gereinigt wird und
- – die Helium-reiche Gasfraktion, die der Helium-enthaltenden Fraktion zugemischt wird, entsprechend ihrem Druck vor oder in die Verdichtung der Helium-enthaltenden Fraktion eingespeist wird.
- - The helium-containing fraction before its condensation and separation into a helium-enriched gas fraction and a helium-depleted liquid fraction one or more stages compressed, preferably to a pressure between 10 and 50 bar is compressed,
- Subjecting the helium-containing fraction to nitrogen separation prior to its condensation and separation into a helium-enriched gas fraction and a helium-depleted liquid fraction,
- - The nitrogen-rich fraction obtained in the nitrogen removal relaxed to a lower pressure, separated into a helium-containing, nitrogen-depleted gas fraction and a nitrogen-enriched liquid fraction, the helium-containing, nitrogen-depleted gas fraction warmed and the helium containing fraction, preferably before their compression, is supplied,
- The nitrogen-rich fraction obtained in the nitrogen removal is at least partially vaporized after its expansion and before it is separated into a helium-containing, nitrogen-depleted gas fraction and a nitrogen-enriched liquid fraction,
- To provide for the condensation of the helium-containing fraction, the helium-enriched gas fraction and / or the helium-depleted liquid fraction, a foreign refrigerant, preferably nitrogen,
- - The helium-containing fraction, preferably after their compression of interfering components, in particular of hydrogen, carbon monoxide, carbon dioxide and / or water, is purified and
- - The helium-rich gas fraction, which is mixed with the helium-containing fraction, is fed according to their pressure before or in the compression of the helium-containing fraction.
Das
erfindungsgemäße Verfahren
zum Abtrennen von Helium aus einer Helium-enthaltenden Fraktion sowie weitere
Ausgestaltungen desselben seien nachfolgend anhand der in den
Bei
dem in der
Erfindungsgemäß wird die
anhand der
Die am Kopf des Abscheiders
D2 über
Leitung
The at the head of the separator D2 via line
Um
trotzdem das Helium aus der aus dem Abscheider D2 abgezogenen Flüssigfraktion
gewinnen zu können
und dabei die maximal zulässige
Temperaturdifferenz im Wärmetauscher
E2 nicht zu überschreiten,
wird die aus dem Abscheider D2 über
Leitung
Die
am Kopf des Abscheiders D4 über
Leitung
Aus
dem Sumpf des Abscheiders D4 wird über die Leitung
In
der
Dazu
wird die über
Leitung
Im
erwähnten
Abscheider D1' erfolgt
eine Auftrennung in eine Helium-enthaltende, Stickstoff-abgereicherte
Gasfraktion und eine Stickstoff-angereicherte Flüssigfraktion. Während die letztgenannte
Fraktion nach Anwärmung
im Wärmetauscher
E1 abgezogen wird – sollte
sie den Kältebedarf
des Wärmetauschers
E1 nicht decken können, kann über Leitung
Diese vorteilhafte Ausgestaltung des erfindungsgemäßen Verfahrens ermöglicht es, aus der bei der Stickstoff-Abtrennung gewonnenen Stickstoff-reichen Fraktion das Helium so weit als möglich zu gewinnen.These advantageous embodiment of the method according to the invention makes it possible from the nitrogen rich in the nitrogen removal Fraction to gain helium as much as possible.
Das erfindungsgemäße Verfahren zum Abtrennen von Helium aus einer Heliumenthaltenden Fraktion, insbesondere aus einer Helium-, Stickstoff- und Methan-enthaltenden Fraktion, weist gegenüber den zum Stand der Technik zählenden Verfahren mehrere Vorteile auf, die nachfolgend aufgeführt sind:
- – Einsparung wenigstens eines Apparates (Abscheiders) im sog. kalten Teil der Helium-Abtrennung
- – Erhöhung der Helium-Ausbeute auf mehr als 99.8%; bekannte Verfahren ermöglichen lediglich Helium-Ausbeuten bis zu 99.3%
- – Einsparung von Verdichtungsenergie, da die noch Restmengen an Helium enthaltende Fraktion, die vor die Verdichtung der Einsatzfraktion zurückgeführt wird, unter höherem Druck als bei den zum Stand der Technik zählenden Verfahren anfällt; somit ist eine Einspeisung auf einem Zwischendruck in den Verdichter C2 möglich
- – Verringerung des Rückführstromes vor den Verdichter C1, was wiederum zu einer Verringerung des Energieverbrauchs des gesamten Prozesses führt
- – der Wärmetauscher E2 ist ohne große thermische Spannungen baubar, da maximal einzuhaltende Temperaturdifferenzen problemlos eingehalten werden können
- – Der Stickstoff-Gehalt in der dem Helium-Verflüssigungsprozes zugeführten Fraktion wird erniedrigt, woraus ein geringerer Aufwand zur Abtrennung des Stickstoffs vor der endgültigen Helium-Verflüssigung resultiert
- - Saving at least one apparatus (separator) in the so-called. Cold part of the helium separation
- Increasing the helium yield to more than 99.8%; known methods allow only helium yields up to 99.3%
- - Saving of compaction energy, since the still remaining amounts of helium-containing fraction, which is attributed to the compression of the feed fraction, obtained under higher pressure than in the prior art method; Thus, a feed to an intermediate pressure in the compressor C2 is possible
- - Reduction of the recycle stream before the compressor C1, which in turn leads to a reduction in the energy consumption of the entire process
- - The heat exchanger E2 is buildable without large thermal stresses, since maximum temperature differences can be met easily
- The nitrogen content in the fraction fed to the helium liquefaction process is lowered, resulting in a lower expenditure for the separation of the nitrogen before the final helium liquefaction
Claims (8)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008007925A DE102008007925A1 (en) | 2008-02-07 | 2008-02-07 | Separating helium, comprises condensing helium-containing fraction, separating into e.g. helium-enriched gas fraction, condensing the gas fraction, evaporating liquid fraction, separating into e.g. helium-rich gas fraction and heating |
AU2009200347A AU2009200347B2 (en) | 2008-02-07 | 2009-01-30 | Process for obtaining helium |
RU2009104099/05A RU2486131C2 (en) | 2008-02-07 | 2009-02-06 | Method of producing helium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008007925A DE102008007925A1 (en) | 2008-02-07 | 2008-02-07 | Separating helium, comprises condensing helium-containing fraction, separating into e.g. helium-enriched gas fraction, condensing the gas fraction, evaporating liquid fraction, separating into e.g. helium-rich gas fraction and heating |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008007925A1 true DE102008007925A1 (en) | 2009-08-13 |
Family
ID=40847232
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008007925A Ceased DE102008007925A1 (en) | 2008-02-07 | 2008-02-07 | Separating helium, comprises condensing helium-containing fraction, separating into e.g. helium-enriched gas fraction, condensing the gas fraction, evaporating liquid fraction, separating into e.g. helium-rich gas fraction and heating |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2009200347B2 (en) |
DE (1) | DE102008007925A1 (en) |
RU (1) | RU2486131C2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008022208A1 (en) | 2008-05-06 | 2009-11-12 | Linde Ag | Treating a gas stream containing nitrogen and methane, comprises subjecting the gas stream to regenerative thermal oxidation process, which makes the methane depletion |
DE102011115984A1 (en) | 2011-10-14 | 2013-04-18 | Linde Ag | Separation of helium from helium-containing methane realms fraction involves separating helium-containing methane-rich fraction, methane-enriched fraction and helium-enriched fraction, compressing, separating, purifying and cleaning |
DE102012008446A1 (en) | 2012-04-26 | 2013-10-31 | Linde Aktiengesellschaft | Method for obtaining pure helium-fraction from helium-containing, methane- and nitrogen-rich feed fraction, involves condensing feed fraction at ten bar pressure, which is separated into helium-depleted fraction and helium-rich fraction |
EP2692411A2 (en) | 2012-08-02 | 2014-02-05 | Air Products And Chemicals, Inc. | Systems and methods for recovering helium form feed streams containing carbon dioxide |
EP3315463A1 (en) | 2016-11-01 | 2018-05-02 | Air Products And Chemicals, Inc. | Helium recovery from streams containing helium, carbon dioxide, and at least one of nitrogen and methane |
US10036590B2 (en) | 2012-08-02 | 2018-07-31 | Air Products And Chemicals, Inc. | Helium recovery from streams containing helium, carbon dioxide, and at least one of nitrogen and methane |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2578144C1 (en) * | 2014-10-24 | 2016-03-20 | Александр Евгеньевич Угроватов | Method for production of ultrapure compressed helium in cylinders |
DE102014018883A1 (en) * | 2014-12-17 | 2016-06-23 | Linde Aktiengesellschaft | Combined membrane pressure swing adsorption process for the recovery of helium |
DE102015001664A1 (en) * | 2015-02-10 | 2016-08-11 | Linde Aktiengesellschaft | Helium recovery process |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4758258A (en) * | 1987-05-06 | 1988-07-19 | Kerr-Mcgee Corporation | Process for recovering helium from a natural gas stream |
DE3716898A1 (en) * | 1987-05-20 | 1988-12-15 | Bergwerksverband Gmbh | METHOD AND DEVICE FOR HELIUM ENHANCEMENT |
DE4100933A1 (en) * | 1991-01-15 | 1992-07-16 | Achenbach Cryotechnik Gmbh | Helium purificn. plant using inert diatomaceous earth adsorber filters - for safer operation in presence of liquid oxygen@ residues |
MY114649A (en) * | 1998-10-22 | 2002-11-30 | Exxon Production Research Co | A process for separating a multi-component pressurized feed stream using distillation |
DE10106484A1 (en) * | 2001-02-13 | 2002-08-14 | Linde Ag | Simultaneous recovery of helium and nitrogen pure fractions from process stream containing methane, nitrogen and helium, involves partially condensing process stream, and further processing |
FR2832213B1 (en) * | 2001-11-12 | 2004-09-24 | Air Liquide | PROCESS AND PLANT FOR THE PRODUCTION OF HELIUM |
-
2008
- 2008-02-07 DE DE102008007925A patent/DE102008007925A1/en not_active Ceased
-
2009
- 2009-01-30 AU AU2009200347A patent/AU2009200347B2/en not_active Ceased
- 2009-02-06 RU RU2009104099/05A patent/RU2486131C2/en not_active IP Right Cessation
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008022208A1 (en) | 2008-05-06 | 2009-11-12 | Linde Ag | Treating a gas stream containing nitrogen and methane, comprises subjecting the gas stream to regenerative thermal oxidation process, which makes the methane depletion |
DE102011115984A1 (en) | 2011-10-14 | 2013-04-18 | Linde Ag | Separation of helium from helium-containing methane realms fraction involves separating helium-containing methane-rich fraction, methane-enriched fraction and helium-enriched fraction, compressing, separating, purifying and cleaning |
DE102012008446A1 (en) | 2012-04-26 | 2013-10-31 | Linde Aktiengesellschaft | Method for obtaining pure helium-fraction from helium-containing, methane- and nitrogen-rich feed fraction, involves condensing feed fraction at ten bar pressure, which is separated into helium-depleted fraction and helium-rich fraction |
EP2692411A2 (en) | 2012-08-02 | 2014-02-05 | Air Products And Chemicals, Inc. | Systems and methods for recovering helium form feed streams containing carbon dioxide |
EP2692411A3 (en) * | 2012-08-02 | 2015-03-11 | Air Products And Chemicals, Inc. | Systems and methods for recovering helium form feed streams containing carbon dioxide |
US9791210B2 (en) | 2012-08-02 | 2017-10-17 | Air Products And Chemicals, Inc. | Systems and methods for recovering helium from feed streams containing carbon dioxide |
US10036590B2 (en) | 2012-08-02 | 2018-07-31 | Air Products And Chemicals, Inc. | Helium recovery from streams containing helium, carbon dioxide, and at least one of nitrogen and methane |
EP3315463A1 (en) | 2016-11-01 | 2018-05-02 | Air Products And Chemicals, Inc. | Helium recovery from streams containing helium, carbon dioxide, and at least one of nitrogen and methane |
Also Published As
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AU2009200347B2 (en) | 2013-08-22 |
RU2009104099A (en) | 2010-08-20 |
AU2009200347A1 (en) | 2009-08-27 |
RU2486131C2 (en) | 2013-06-27 |
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